Genetics of lineage diversification and the evolution of host usage in the economically important wheat curl mite, Aceria tosichella Keifer, 1969

Abstract Background Understanding the mechanisms that underlie the diversification of herbivores through interactions with their hosts is important for their diversity assessment and identification of expansion events, particularly in a human-altered world where evolutionary processes can be exacerb...

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Main Authors: Anna Skoracka, Luís Filipe Lopes, Maria Judite Alves, Adam Miller, Mariusz Lewandowski, Wiktoria Szydło, Agnieszka Majer, Elżbieta Różańska, Lechosław Kuczyński
Format: Article
Language:English
Published: BMC 2018-08-01
Series:BMC Evolutionary Biology
Subjects:
Online Access:http://link.springer.com/article/10.1186/s12862-018-1234-x
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spelling doaj-65aaf379de9a41c0a5e42c7a8147d7ab2021-09-02T07:03:34ZengBMCBMC Evolutionary Biology1471-21482018-08-0118111510.1186/s12862-018-1234-xGenetics of lineage diversification and the evolution of host usage in the economically important wheat curl mite, Aceria tosichella Keifer, 1969Anna Skoracka0Luís Filipe Lopes1Maria Judite Alves2Adam Miller3Mariusz Lewandowski4Wiktoria Szydło5Agnieszka Majer6Elżbieta Różańska7Lechosław Kuczyński8Population Ecology Lab, Faculty of Biology, Adam Mickiewicz University, PoznańMuseu Nacional de História Natural e da Ciência & Centre for Ecology, Evolution and Environmental Changes (cE3c), University of LisbonMuseu Nacional de História Natural e da Ciência & Centre for Ecology, Evolution and Environmental Changes (cE3c), University of LisbonDeakin UniversityDepartment of Applied Entomology, Faculty of Horticulture, Biotechnology and Landscape Architecture, Warsaw University of Life Sciences – SGGWDepartment of Entomology, University of Nebraska-LincolnPopulation Ecology Lab, Faculty of Biology, Adam Mickiewicz University, PoznańDepartment of Botany, Faculty of Agriculture and Biology, Warsaw University of Life Sciences – SGGWPopulation Ecology Lab, Faculty of Biology, Adam Mickiewicz University, PoznańAbstract Background Understanding the mechanisms that underlie the diversification of herbivores through interactions with their hosts is important for their diversity assessment and identification of expansion events, particularly in a human-altered world where evolutionary processes can be exacerbated. We studied patterns of host usage and genetic structure in the wheat curl mite complex (WCM), Aceria tosichella, a major pest of the world’s grain industry, to identify the factors behind its extensive diversification. Results We expanded on previous phylogenetic research, demonstrating deep lineage diversification within the taxon, a complex of distinctive host specialist and generalist lineages more diverse than previously assumed. Time-calibrated phylogenetic reconstruction inferred from mitochondrial DNA sequence data suggests that lineage diversification pre-dates the influence of agricultural practices, and lineages started to radiate in the mid Miocene when major radiations of C4 grasses is known to have occurred. Furthermore, we demonstrated that host specificity is not phylogenetically constrained, while host generalization appears to be a more derived trait coinciding with the expansion of the world’s grasslands. Demographic history of specialist lineages have been more stable when compared to generalists, and their expansion pre-dated all generalist lineages. The lack of host-associated genetic structure of generalists indicates gene flow between mite populations from different hosts. Conclusions Our analyses demonstrated that WCM is an unexpectedly diverse complex of genetic lineages and its differentiation is likely associated with the time of diversification and expansion of its hosts. Signatures of demographic histories and expansion of generalists are consistent with the observed proliferation of the globally most common lineages. The apparent lack of constrains on host use, coupled with a high colonization potential, hinders mite management, which may be further compromised by host range expansion. This study provides a significant contribution to the growing literature on host-association and diversification in herbivorous invertebrates.http://link.springer.com/article/10.1186/s12862-018-1234-xAceria tosichellaDemographic historyGenetic diversityHost-associationsLineage diversificationSpecies delimitation
collection DOAJ
language English
format Article
sources DOAJ
author Anna Skoracka
Luís Filipe Lopes
Maria Judite Alves
Adam Miller
Mariusz Lewandowski
Wiktoria Szydło
Agnieszka Majer
Elżbieta Różańska
Lechosław Kuczyński
spellingShingle Anna Skoracka
Luís Filipe Lopes
Maria Judite Alves
Adam Miller
Mariusz Lewandowski
Wiktoria Szydło
Agnieszka Majer
Elżbieta Różańska
Lechosław Kuczyński
Genetics of lineage diversification and the evolution of host usage in the economically important wheat curl mite, Aceria tosichella Keifer, 1969
BMC Evolutionary Biology
Aceria tosichella
Demographic history
Genetic diversity
Host-associations
Lineage diversification
Species delimitation
author_facet Anna Skoracka
Luís Filipe Lopes
Maria Judite Alves
Adam Miller
Mariusz Lewandowski
Wiktoria Szydło
Agnieszka Majer
Elżbieta Różańska
Lechosław Kuczyński
author_sort Anna Skoracka
title Genetics of lineage diversification and the evolution of host usage in the economically important wheat curl mite, Aceria tosichella Keifer, 1969
title_short Genetics of lineage diversification and the evolution of host usage in the economically important wheat curl mite, Aceria tosichella Keifer, 1969
title_full Genetics of lineage diversification and the evolution of host usage in the economically important wheat curl mite, Aceria tosichella Keifer, 1969
title_fullStr Genetics of lineage diversification and the evolution of host usage in the economically important wheat curl mite, Aceria tosichella Keifer, 1969
title_full_unstemmed Genetics of lineage diversification and the evolution of host usage in the economically important wheat curl mite, Aceria tosichella Keifer, 1969
title_sort genetics of lineage diversification and the evolution of host usage in the economically important wheat curl mite, aceria tosichella keifer, 1969
publisher BMC
series BMC Evolutionary Biology
issn 1471-2148
publishDate 2018-08-01
description Abstract Background Understanding the mechanisms that underlie the diversification of herbivores through interactions with their hosts is important for their diversity assessment and identification of expansion events, particularly in a human-altered world where evolutionary processes can be exacerbated. We studied patterns of host usage and genetic structure in the wheat curl mite complex (WCM), Aceria tosichella, a major pest of the world’s grain industry, to identify the factors behind its extensive diversification. Results We expanded on previous phylogenetic research, demonstrating deep lineage diversification within the taxon, a complex of distinctive host specialist and generalist lineages more diverse than previously assumed. Time-calibrated phylogenetic reconstruction inferred from mitochondrial DNA sequence data suggests that lineage diversification pre-dates the influence of agricultural practices, and lineages started to radiate in the mid Miocene when major radiations of C4 grasses is known to have occurred. Furthermore, we demonstrated that host specificity is not phylogenetically constrained, while host generalization appears to be a more derived trait coinciding with the expansion of the world’s grasslands. Demographic history of specialist lineages have been more stable when compared to generalists, and their expansion pre-dated all generalist lineages. The lack of host-associated genetic structure of generalists indicates gene flow between mite populations from different hosts. Conclusions Our analyses demonstrated that WCM is an unexpectedly diverse complex of genetic lineages and its differentiation is likely associated with the time of diversification and expansion of its hosts. Signatures of demographic histories and expansion of generalists are consistent with the observed proliferation of the globally most common lineages. The apparent lack of constrains on host use, coupled with a high colonization potential, hinders mite management, which may be further compromised by host range expansion. This study provides a significant contribution to the growing literature on host-association and diversification in herbivorous invertebrates.
topic Aceria tosichella
Demographic history
Genetic diversity
Host-associations
Lineage diversification
Species delimitation
url http://link.springer.com/article/10.1186/s12862-018-1234-x
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